AT L1000's often cato. There a recall at one time. 50% failure rate.
Here are some examples:
[video=youtube;zzpFWOXdqQE]https://www.youtube.com/watch?v=zzpFWOXdqQE[/video]
[video=youtube;7bLl7JgZuMk]https://www.youtube.com/watch?v=7bLl7JgZuMk[/video]
[video=youtube;K5jGPXW0rmQ]https://www.youtube.com/watch?v=K5jGPXW0rmQ[/video]
[video=youtube;ZV6rTn7-3hc]https://www.youtube.com/watch?v=ZV6rTn7-3hc[/video]